http://scn.sap.com/community/erp/logistics-mm/blog/2013/11/27/pricing-procedure-details-and-steps-in-sap-mm
Pricing procedure for Purchase order :
Path : IMG -- > MM -- > Purchasing -->Conditions --> Define Price Determination Process
Explain the pricing procedure used in Purchase Order
Pricing procedure Steps and Details in SAP MM (from SCN)
原文：http://www.cnblogs.com/jefflu2012/p/4387317.html